Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web.Extensions/Script/Services/ProxyGenerator.cs

@@ -0,0 +1,82 @@
+//------------------------------------------------------------------------------
+// <copyright file="ProxyGenerator.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+ 
+namespace System.Web.Script.Services {
+    using System;
+    using System.Globalization;
+    using System.Reflection;
+    using System.ServiceModel;
+    using System.ServiceModel.Description;
+    using System.Web.Resources;
+
+    public static class ProxyGenerator {
+
+        const string WCFProxyTypeName = "System.ServiceModel.Description.WCFServiceClientProxyGenerator";
+        const string WCFProxyMethodName = "GetClientProxyScript";
+
+        public static string GetClientProxyScript(Type type, string path, bool debug) {
+            return GetClientProxyScript(type, path, debug, null);
+        }
+    
+        public static string GetClientProxyScript(Type type, string path, bool debug, ServiceEndpoint serviceEndpoint) {
+            if (type ==  null) {
+                throw new ArgumentNullException("type");
+            }
+            if (path == null) {
+                throw new ArgumentNullException("path");
+            }
+            WebServiceData webServiceData = null; 
+            ClientProxyGenerator proxyGenerator = null;
+            if (IsWebServiceType(type)) {
+                proxyGenerator = new WebServiceClientProxyGenerator(path, debug);
+                webServiceData = new WebServiceData(type, false);
+            }
+            else if (IsPageType(type)) {
+                proxyGenerator = new PageClientProxyGenerator(path, debug);
+                webServiceData = new WebServiceData(type, true);
+            }
+            else if(IsWCFServiceType(type)) {
+                // invoke the WCFServiceClientProxyGenerator.GetClientProxyScript method using reflection
+                Assembly wcfWebAssembly = Assembly.Load(AssemblyRef.SystemServiceModelWeb);
+                if (wcfWebAssembly != null) {
+                    Type wcfProxyType = wcfWebAssembly.GetType(WCFProxyTypeName);
+                    if (wcfProxyType != null) {
+                        MethodInfo getClientProxyMethod = wcfProxyType.GetMethod(WCFProxyMethodName, BindingFlags.Static | BindingFlags.NonPublic);
+                        if (getClientProxyMethod != null) {     
+                            return getClientProxyMethod.Invoke(null, new object[] { type, path, debug, serviceEndpoint }) as string;
+                        }
+                    }
+                }
+
+                // in case the reflection fails, we should throw unsupported exception
+                throw new ArgumentException(String.Format(CultureInfo.CurrentCulture,
+                    AtlasWeb.ProxyGenerator_UnsupportedType,
+                    type.FullName));
+            }
+            else {
+                throw new ArgumentException(String.Format(CultureInfo.CurrentCulture,
+                    AtlasWeb.ProxyGenerator_UnsupportedType, 
+                    type.FullName));
+            }
+            return proxyGenerator.GetClientProxyScript(webServiceData);
+        }
+
+        private static bool IsPageType(Type type) {
+            return typeof(System.Web.UI.Page).IsAssignableFrom(type);
+        }
+
+        private static bool IsWCFServiceType(Type type) {
+            object[] attribs = type.GetCustomAttributes(typeof(ServiceContractAttribute), true);
+            return (attribs.Length != 0);
+        }
+
+        private static bool IsWebServiceType(Type type) {
+            object[] attribs = type.GetCustomAttributes(typeof(ScriptServiceAttribute), true);
+            return (attribs.Length != 0);
+        }
+
+    }
+}